refs.c: add refs_ref_exists()

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/refs.c b/refs.c
index 142888a40a611370240864e2f27f097832db11e9..b869f32d8babf962ae89a39d9fc8de3ee62166e3 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -241,9 +241,14 @@ int read_ref(const char *refname, struct object_id *oid)
        return read_ref_full(refname, RESOLVE_REF_READING, oid, NULL);
 }
 
+static int refs_ref_exists(struct ref_store *refs, const char *refname)
+{
+       return !!refs_resolve_ref_unsafe(refs, refname, RESOLVE_REF_READING, NULL, NULL);
+}
+
 int ref_exists(const char *refname)
 {
-       return !!resolve_ref_unsafe(refname, RESOLVE_REF_READING, NULL, NULL);
+       return refs_ref_exists(get_main_ref_store(the_repository), refname);
 }
 
 static int match_ref_pattern(const char *refname,